Zuheir ALTAMIMI - Implication de l'IGN dans les ... - Recherche
Zuheir ALTAMIMI - Implication de l'IGN dans les ... - Recherche
Zuheir ALTAMIMI - Implication de l'IGN dans les ... - Recherche
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International Earth Rotation and Reference<br />
Systems Service (IERS)<br />
Established in 1987 (started Jan. 1, 1988) by IAU and IUGG<br />
to realize/maintain/provi<strong>de</strong>:<br />
• The International Ce<strong>les</strong>tial Reference System (ICRS)<br />
• The International Terrestrial Reference System<br />
(ITRS)<br />
• Earth Orientation Parameters (EOP)<br />
• Geophysical data to interpret time/space variations<br />
in the ICRF, ITRF & EOP<br />
• Standards, constants and mo<strong>de</strong>ls (i.e., conventions)<br />
http://www.iers.org/<br />
Journées <strong>Recherche</strong> IGN 11 mars 2009<br />
20
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